package login;

import java.io.IOException;



import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;


public class LogoutServlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)

			throws ServletException, IOException {

		HttpSession session = request.getSession(false);//防止创建Session

		if(session == null){

			response.sendRedirect("login.jsp");

			return;

		}

		

		session.removeAttribute("login");

		response.sendRedirect("login.jsp");

	}
}